Clamp for conductors



K. KROLZIG CLAMP FOR comauc'rons .File'd March 16, 1925 Patented Aug. 18, 1931 r UNITE srArExs PATENTOFFE ff 4 KARL KROLZIG, or nnnnm-oiannscnonnwninn, GERIiiANY, Assisnonpro 'IlocKE, INSULATOR CORPORATION, or BALTIMORE, ,MABYLAND, A conrom'rronor MARYLAND CLAMP r03 oonnno'rozas Application filed March 16,1925, Serial No. 15,915, and m ma m 18, 1924.

The invention relates to'clamps for securing'electric overhead lines, especially high tenslon lines, or conductors, and has for'its object toprovide a two-part clamp which is 811111918 111 construction, inexpensive to manufacture and which is simple .and easy to attach.

' tion showing a conductor positioned therein.

Figure 2 is a cross-section taken on 2 -2 of Figure 1. Figures 3 and 4 are perspective views, one showing the manner of connecting and the line other showing the clamp with the cable in place, the clamping from both figures.

Carrying clamps curingv conductors to supporting masts are difficult to mount, particularly when at great means being omitted height. This' difficulty arises from the fact that the carrying clamp must first be fastenployed in this art to avoid the difficulties,

but so far as applicant isaware he is the first to provide a simple clamp which is capable of ready attachment to a string of insulators and which can be assembled with.

the conductor after being mounted upon the insulators, as will be hereinafter more fully pointed out.

Referring now to the drawings in detail, the clamp comprises two counter-part members 1 and 2, the upper portions of which are formed as a clapper pan 3 and are adapted to be connected after being assembled on the clapper by a ringi which is pushed down over the neck, the ring being secured against shifting by cotters or pins 5 or the like. ThG'lOWBI' portion of each heretofore used for sea portions 1 and position.

part of the clamp isextended into a sup porting groove 6 into which-the cable or conductor is adapted to be received. Side- Wise or relative shiftingfofthe. portions 1 and 2 of the clamp'is prevented by the'projections 7, the projection on each portion being adapted to enter acorrespond-ingrecess 8 in the other cap or portion. When the clamp members are assembled there is provided arrecess 9 at each central portion which is adapted toreceive a two-part auxiliary clamp which comprises two pressure pieces 10 and 11 which are pressed together or held by 'abolt and'nut 12. The lower ends of the pieces 10 and ,11. form cheeks 13 and 14 whichare adapted to grasp the cable 15 therebetween. The pieces lO and 11 are retained in'p'ositionand held against displacement from-the body of the clamp by claws 16 and 17-, respectively,-whic h are adapted to enter the corresponding grooves 18 formed on the clampflportions land 21 It will be observed thatnotonly do the pieces 10 and 11 serve to maintain the cable against lateral shifting with reference to the clamp but also as'sist'the ring 4 in maintaining the 2 of the clamp in assembled The carrying clamp after being assembled withthe clapper 19 of the lowermost string of insulators,'is rotated,-'as shown in Figure 3, so that the longitudinal axis of" the groove '6 is disposed substantially at an 'angle of" to the cableor conductor. The

cable isthen raiseduntil it is=inthe upper extremity of,the recess 9 and: the*clamp is then rotated back to normal position and in suchdirection that the grooves (Swill underliethe adjacent portions of the conductor whereupon the cable is dropped into the grooves and-theauxiliary clamping device is attached to firmly grasp'the cable as well as to maintain the parts of the clamp in assembled position. i

. Having now described-my invention, what I ClitlHlIELSJ'IEW and desire'to secure by Letters Patent, is: I

1. In"a device of the'character described, the combination withxa support, ofa carryin'g clamp comprising; a pair of members having ball and socket connection with said support, the members each being provided with a cable supporting portion, and means engaging a cable for interlockingly connecting said clamp thereto.

2. An article of manufacture comprising a pair of members having interfitting en-' gaglng portlons and conductor supporting portions, and means. for preventing the separation of said members, said means also serving-to engage and interlockingly con nect a cable thereto.

3. A suspension clamp comprlsing a pair of similarly constructed cable carrying members formed with complementary portions forming, when assembled, a socket for engaging supporting means, auxiliary clamping devices provided with extensions clampingly engaging the socket forming portions of the clamp for holding them in assembled relation and other extensions adapted for engaging a supported cable for rigidly holding the same in position, and means holding said auxiliary members together.

4. A suspension clamp comprising a pair of similarly constructed members adapted,

- when assembled, to form a clapper pan, said members being provided with cable supporting grooves beneath said pan, said members being adapted for assembly about an associated clapper and forming a recess there- =between into which a cable to be supported is introduced and connected to the clamp by rotating the same until the grooves underlie said cable, and cable locking means comprising a pair'of auxiliary clamps, the upper ends of which engage the members of the clamp and hold the same in assembled relation and the lower ends of which engage the cable and lock the samein place.

5. A suspension clamp comprising counterpart members mutually engaging and forming a socket for the reception of a with spaced grooved portions opening out at the top and adapted to receive and support a cable, auxiliary clamping members located between said grooved portions and having claw portions. engaging said complementary members and having other portions adapted to engage a cable, and means extending transversely through said auxiliary clamping members for maintaining them in clamping engagement upon the cable and said complementary members for holding the latter assembled.

7 A suspension clamp comprising counterpart members having complementary portions defining, when assembled, a socket adapted for swivelled engagement upon' a headed support, said members being formed with spaced grooved portions opening out at the topjand adapted to receive and support a cable, auxiliary clamping members located between said grooved portions and having claw portions engaging said complementary members and having other portions adapted to engagea cable, means extending transversely through said auxiliary clamping members for maintaining them in clamping en agement upon the cable and said complementary members for holding the latter assembled, and a band slidablyenageable upon said complementary members ior preventing separation thereof.

8. A. suspension clamp comprising a pair of socketed members adapted for rotatable engagement upon ,a headed support and formed with saddle portions engageable beneat-h a conductor to support the same, said saddle portions being spaced apart, and clamping means located between said spaced portions and engaging against said members for simultaneously holding the same against separation and clamping the conductor.

9. A suspension clamp of the character described comprising a pair of opposed members having spaced grooved portions adapted to engage beneath and support a conductor, and means located between said spaced portions in clamping engagement with the conductor and with said members for preventing separation of the latter. Y

In testimony whereof I aflix my signature.

KARL KROLZIG.- 

